Product Introduction

• Structure: An integral precision-forged component made from high-strength nickel-chromium alloy steel, with an external helical tooth profile and an internal spline bore. The tooth surface is carburized and hardened (HRC 58–62) for extreme wear resistance, then precision ground for ultra-smooth meshing. The surface is treated with a corrosion-resistant black oxide coating.

• Performance: The high-hardness tooth surface withstands extreme torque and impact forces, while the helical tooth design ensures smooth, quiet power transmission with reduced vibration. The internal spline provides a rigid connection to the main shaft, preventing slippage and ensuring consistent torque transmission.

Core Function

1. Speed Synchronization: Works with the synchronizer ring to equalize the rotational speed of the target gear and main shaft, eliminating gear clash during shifting.

2. Smooth Gear Engagement: The helical tooth profile ensures gradual meshing with the sliding sleeve, reducing noise and vibration for a smoother driving experience.

3. Torque Transmission: Once synchronized, the gear locks onto the sliding sleeve, transferring torque from the main shaft to the output.

Synchronizer Gear 16748 Fast Gear – Premium Gearbox Replacement Part for Heavy-Duty Trucks

When your transmission demands precision and durability, the Synchronizer Gear 16748 Fast Gear delivers exactly that. Engineered to match OEM specifications, this synchronizer gear sleeve ensures smooth gear engagement, reduced shifting noise, and extended service life inside your Fast gearbox system. Whether you’re maintaining a fleet or sourcing parts for resale, this component keeps your trucks running efficiently on every route.

At Mettlead, we specialize in supplying genuine-quality Chinese brand truck parts at factory-direct prices. As a result, procurement managers like you get reliable components without inflated middleman costs. Moreover, our strict quality control process guarantees that every Synchronizer Gear 16748 leaving our facility meets the performance standards your heavy-duty vehicles require.

Key Features and Benefits of Synchronizer Gear 16748 Fast Gear

Choosing the right synchronizer gear sleeve is critical for transmission longevity. Here’s why the Synchronizer Gear 16748 Fast Gear stands out among competitors:

• Precision-Machined Teeth: Each gear tooth is carefully cut to ensure seamless meshing with the synchronizer hub, which ultimately reduces wear and prevents premature failure.
• High-Grade Alloy Steel Construction: Manufactured from heat-treated alloy steel, this synchronizer gear sleeve resists fatigue cracking even under heavy torque loads.
• OEM-Equivalent Dimensions: The 16748 specification matches original Fast Gear factory blueprints, so installation is straightforward without any modifications.
• Smooth Shifting Performance: By maintaining tight tolerances, this gear sleeve eliminates grinding during gear changes, consequently protecting the entire synchro assembly.
• Extended Service Intervals: Thanks to superior material hardness and surface finish, replacement intervals are significantly longer compared to aftermarket alternatives.
• Cost-Effective Fleet Maintenance: Factory-direct pricing from Mettlead means you reduce per-unit costs, especially on bulk orders for fleet overhauls.

Application Scenarios – Where Does Synchronizer Gear 16748 Fit?

The Synchronizer Gear 16748 Fast Gear is specifically designed as a synchronizer gear sleeve for Fast transmissions. In other words, it serves as a direct replacement part in multiple heavy-duty truck platforms. Below are the primary application scenarios:

• Compatible Gearbox: Fast Gear series transmissions (9-speed, 12-speed, and 16-speed models)
• Applicable Truck Brands: SINOTRUK HOWO, SHACMAN, FAW J6/J7, Dongfeng Tianlong, and Foton Auman series equipped with Fast gearboxes
• Use Case: Replacement of worn or damaged synchronizer gear sleeves during transmission rebuilds, preventive maintenance programs, or emergency roadside repairs
• Operating Environment: Long-haul freight routes, mining operations, construction site logistics, and urban distribution fleets where gearbox reliability is non-negotiable

In addition, this synchronizer gear sleeve works within the complete Fast Gear synchronizer assembly, pairing with synchro rings, hubs, and sliding sleeves. For more Fast gearbox components, explore our Fast Gearbox Parts catalog.

Technical Specifications – Synchronizer Gear 16748 Fast Gear

OEM/ODM Capabilities – Custom Solutions for Your Market

We understand that different markets have different needs. That’s precisely why Mettlead offers flexible OEM and ODM services for the Synchronizer Gear 16748 Fast Gear and other transmission components:

• White-Label Packaging: We can package your synchronizer gear sleeve under your own brand, complete with custom labels, part numbers, and barcodes tailored to your distribution network.
• Custom Packaging Design: Whether you need individual blister packs, bulk cartons, or branded export boxes, our packaging team adapts to your specifications.
• Quality Certification Documents: Each batch ships with inspection reports, material certificates, and hardness test results, so you can confidently assure your end customers of product integrity.
• Batch Consistency: Our strict quality control protocols ensure that whether you order 50 pieces or 5,000 pieces, every Synchronizer Gear 16748 meets identical dimensional and performance standards.

Furthermore, we welcome procurement teams to visit our facility in China for on-site quality audits. Seeing our production line firsthand gives you complete confidence in our capabilities. Browse our full range of gearbox parts and transmission components to discover additional sourcing opportunities.

Customer Case Study – Synchronizer Gear 16748 Fast Gear in Action

A fleet logistics company based in East Africa was experiencing recurring transmission failures across their 40-unit HOWO truck fleet. Specifically, drivers reported grinding noises and difficult gear engagement during highway acceleration, which pointed directly to worn synchronizer gear sleeves in the Fast gearbox assemblies.

After contacting Mettlead, their procurement manager ordered 120 units of the Synchronizer Gear 16748 Fast Gear to cover immediate replacements and preventive stock. Within 15 days, the full shipment arrived at their warehouse. Their maintenance team installed the synchronizer gear sleeves during routine service intervals, and the results spoke for themselves:

• Gear shifting noise dropped significantly across all repaired trucks
• Transmission-related downtime decreased by 60% over the following quarter
• Per-unit cost savings of approximately 35% compared to their previous supplier
• Zero warranty claims on the Synchronizer Gear 16748 after six months of operation

This case clearly demonstrates how sourcing genuine-quality Synchronizer Gear 16748 Fast Gear components from a reliable factory-direct supplier can dramatically reduce fleet operating costs while improving vehicle uptime.

Frequently Asked Questions – Synchronizer Gear 16748 Fast Gear

What exactly is Synchronizer Gear 16748, and what does it do inside the transmission?

The Synchronizer Gear 16748 is a gear sleeve that sits on the synchronizer hub within Fast Gear transmissions. Its primary function is to lock the selected gear to the output shaft during shifting. Essentially, it bridges the rotating gear and the hub, enabling smooth and clash-free gear engagement at any road speed.

Which specific truck models use the Synchronizer Gear 16748 Fast Gear?

This synchronizer gear sleeve is designed for Fast Gear transmissions commonly installed in SINOTRUK HOWO, SHACMAN Delong, FAW J6/J7, Dongfeng Tianlong, and Foton Auman series trucks. If your vehicle uses a Fast 9-speed, 12-speed, or 16-speed gearbox, there’s a strong chance this part number applies.

How can I tell if my Synchronizer Gear 16748 needs replacement?

Several symptoms indicate a worn synchronizer gear sleeve. These include grinding or crunching noises during gear shifts, difficulty engaging specific gears, gear pop-out under load, and excessive play in the shift lever. If you notice any combination of these signs, inspecting the synchronizer assembly should be your first step.

Is the Synchronizer Gear 16748 from Mettlead made to OEM standards?

Absolutely. Our Synchronizer Gear 16748 Fast Gear is manufactured using the same alloy steel grades and heat treatment processes specified in the original Fast Gear blueprints. Every batch undergoes dimensional inspection, hardness testing, and visual quality checks to ensure OEM-equivalent performance.

What is the typical lead time for bulk orders of Synchronizer Gear 16748?

For standard stock items, lead time is typically 3–7 business days. For larger bulk orders or custom-packaged consignments, production and delivery usually take 10–20 business days depending on quantity. We always confirm exact timelines before order confirmation.

Can I order the Synchronizer Gear 16748 with my own brand packaging?

Yes, white-label and custom packaging services are available for all our synchronizer gear products. Simply provide your branding artwork, preferred label layout, and packaging requirements, and we’ll handle the rest during production.

Ready to Source Your Synchronizer Gear 16748 Fast Gear?

Stop overpaying for transmission parts that should be affordable. With Mettlead, you get the Synchronizer Gear 16748 Fast Gear at factory-direct pricing, backed by strict quality control and fast, reliable delivery to your doorstep anywhere in the world.

Whether you need a single sample for testing or thousands of units for fleet maintenance, our team is ready to provide competitive quotes and technical support. Additionally, we offer flexible and secure payment methods to accommodate international buyers.

Take the next step today: Contact us now to request a quote, ask technical questions, or schedule a factory visit. Our export team typically responds within 24 hours with pricing and availability.